I recently switched to a new fighting gym which specialises in K1 Kickboxing, whereas before I was doing Sanda and White Crane Kung Fu. Overall I'm liking the change but one of the key differences I've noticed so far is that when I did Sanda I was trained to use both sides equally, and to change my lead leg often during a fight. There was also a big emphasis on both linear and circular footwork. By contrast, at my new gym the instructor has told me not to switch leading legs and therefore all the drills I do are done on the same side. I'm curious on people's opinion regarding this. Is it better to be able to switch leading legs and stances during a fight, or just focus on a single side over the other?